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Application of the X-ray CT Technique for NDE of Wood in Field

机译：X射线CT技术在现场木材NDE中的应用

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NDE (Nondestructive Evaluation) of wood was performed using X-ray CT technique in order to determine the applicability of this technology to ancient wooden buildings in the field. Two main objectives were studied to consider applicability as well as accuracy. First, the most suitable number of radiographs for reconstructing proper X-ray CT images was determined. Secondly, X-ray CT images using SIRT were reconstructed using various numbers of radiographs in order to consider the possible effects of absent projection data in field applications. As a result of this study, 9 radiographs were determined to be the most suitable number for this application. Brown-rotted part in wood was also detected by X-ray CT images using 9 radiographs. It was concluded that even there exists some absent projection data, CT images can be reconstructed with high accuracy.
机译：使用X射线CT技术进行木材的NDE（非破坏性评估），以确定这项技术对该领域的古木建筑物的适用性。研究了两个主要目标，以考虑适用性以及准确性。首先，确定用于重建适当的X射线CT图像的最合适数量的射线照片。其次，使用各种数量的射线照片重建使用SIRT的X射线CT图像，以便考虑非不存在投影数据在现场应用中的可能影响。由于本研究，确定了9个射线照片是本申请的最合适的编号。使用9射线照片也由X射线CT图像检测到木材中的棕色腐烂部分。结论是，即使存在一些不存在的投影数据，也可以以高精度重建CT图像。

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